1061650655101 has 4 divisors (see below), whose sum is σ = 1061667603612. Its totient is φ = 1061633706592.

The previous prime is 1061650655081. The next prime is 1061650655119. The reversal of 1061650655101 is 1015560561601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 521500622500 + 540150032601 = 722150^2 + 734949^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061650655101 - 2⁷ = 1061650654973 is a prime.

It is a super-2 number, since 2×1061650655101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061650655141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8379946 + ... + 8505691.

It is an arithmetic number, because the mean of its divisors is an integer number (265416900903).

Almost surely, 2^{1061650655101} is an apocalyptic number.

It is an amenable number.

1061650655101 is a deficient number, since it is larger than the sum of its proper divisors (16948511).

1061650655101 is an equidigital number, since it uses as much as digits as its factorization.

1061650655101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16948510.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 1061650655101 in words is "one trillion, sixty-one billion, six hundred fifty million, six hundred fifty-five thousand, one hundred one".